Going to
but I just did this brain dump and I'd love your input. Help refine my thinking.pic.twitter.com/E0F8KsNXEw
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
With specific relevance to products, many of the defining products create their own markets. My iPhone didn't replace anything.
Uber similarly doesn't quite compete with taxis. It doesn't even stop at competing with cars. it *creates trips* by existing.
In fact, almost no markets work like this.
Paul Graham's essay on how to make wealth is probably the best read on this: http://paulgraham.com/wealth.html
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.